Results 291 to 300 of about 42,623 (370)

A new Middle Jurassic lagoon margin assemblage of theropod and sauropod dinosaur trackways from the Isle of Skye, Scotland. [PDF]

PLoS One
Blakesley T, dePolo PE, Wade TJ, Ross DA, Brusatte SL.   +4 more
europepmc   +1 more source

Osteohistology of the unusually fast‐growing theropod dinosaur Ceratosaurus

Journal of Anatomy, EarlyView.
We report the histology of multiple elements attributed to four individuals of Ceratosaurus. We find that the histology and growth models corroborate previous reports of rapid tissue growth in the genus. Abstract Ceratosaurus is a large‐bodied non‐avian theropod dinosaur known from the Upper Jurassic Morrison Formation of North America and is ...
Riley Sombathy, Patrick M. O'Connor, Michael D. D'Emic   +2 more
wiley   +1 more source

Large scale and regional demographic responses to climatic changes in Europe during the Final Palaeolithic. [PDF]

PLoS One
Schmidt I, Gehlen B, Winkler K, Arrizabalaga A, Arts N, Bicho N, Crombé P, Eriksen BV, Grimm SB, Kapustka K, Langlais M, Mevel L, Naudinot N, Nerudová Z, Niekus M, Peresani M, Riede F, Sauer F, Schön W, Sobkowiak-Tabaka I, Vandendriessche H, Weber MJ, Zander A, Zimmermann A, Maier A.   +24 more
europepmc   +1 more source

Life history data derived from the dental histological analysis of Giraffa camelopardalis: Implications for the palaeohistology of extinct giraffids

Journal of Anatomy, EarlyView.
The study of incremental lines in the dentine (left), cementum (centre) and enamel (right) of the giraffe revealed key information about the rate and pattern of dental growth in this vertebrate. These results were also useful to obtain data on the biology and life history of the species and sets the stage for future palaeohistological analysis in ...
Carmen Nacarino‐Meneses, Juan Marcos Jannello, Anusuya Chinsamy   +2 more
wiley   +1 more source

A new metoposaurid (Temnospondyli) bonebed from the lower Popo Agie Formation (Carnian, Triassic) and an assessment of skeletal sorting. [PDF]

PLoS One
Kufner AM, Deckman ME, Miller HR, So C, Price BR, Lovelace DM.   +5 more
europepmc   +1 more source

Illuminating the dark mess of fibers: Application of circular cross polarized light in unravelling the bone tissue structure of the dermal pectoral girdle of Metoposaurus krasiejowensis

Journal of Anatomy, EarlyView.
Circular cross polarized light reveals the fine stucture of dermal bone tissue of a metoposaurid amphibian from the Late Triassic. Top right image shows the looped interwoven fibered bone when illuminated with circular polarized light displaying increased bone matrix intricacy compared to the same region of the bone when visualized with traditional ...
Sudipta Kalita, Elżbieta M. Teschner, Dorota Konietzko‐Meier   +2 more
wiley   +1 more source

A new species of the rib-degenerated loach, genus Protocobitis (Cypriniformes, Cobitidae), from Guangxi, China. [PDF]

Zookeys
Qin ZX, Liu YW, Zhang SY, Shi JS, Du LN, Zhou JJ.   +5 more
europepmc   +1 more source

The osteohistology of gorgonopsian therapsids and implications for Permo‐Triassic theriodont growth

Journal of Anatomy, EarlyView.
Permian gorgonopsian therapists had rapid, annually interrupted growth and show longer lifespans than early Triassic therapists. Abstract During the Late Permian, saber‐toothed gorgonopsian therapsids were the dominant terrestrial predators, playing crucial roles as apex predators alongside therocephalian therapsids within Permian terrestrial ...
Jennifer Botha
wiley   +1 more source

On the earliest evolution of the mammaliaform teeth, jaw joint and middle ear. [PDF]

Clin Transl Med
Meng J, Mao F.
europepmc   +1 more source

Evaluation of the endocranial anatomy of the early Paleogene north African gavialoid crocodylian Argochampsa krebsi and evolutionary implications for adaptation to salinity tolerance in marine crocodyliforms

Journal of Anatomy, EarlyView.
Abstract Argochampsa krebsi is a gavialoid crocodylian from the early Paleogene of North Africa. Based on its recovered phylogenetic relationship with South American species, it has been inferred to have been capable of transoceanic dispersal, but potential anatomical correlates for a marine lifestyle have yet to be identified.
Carly C. Pligersdorffer, Paul M. J. Burke, Philip D. Mannion   +2 more
wiley   +1 more source